Manchester United initially tweeted that the game was delayed but later said the match had been "abandoned ... on police advice."

The BBC reports two stands were evacuated and bomb-sniffing dogs were brought in.

Greater Manchester Police issued a statement applauding the efforts: "Everyone remained calm, followed instructions, and worked with officers and stewards to ensure that a safe evacuation was quickly completed. Those present today were a credit to the football family and their actions should be recognized."

The league said fans will get a refund plus a free ticket to a rescheduled game on Tuesday.